Solve the equation `4^(x)- 5 xx2^(x) + 4 = 0.`

Explanation

To solve the equation \( 4^x - 5 \cdot 2^x + 4 = 0 \), we can follow these steps:

### Step 1: Rewrite the equation
We start by rewriting \( 4^x \) in terms of \( 2^x \):
\[ 4^x = (2^2)^x = (2^x)^2 \]
So, we can rewrite the equation as:
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